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MINMATCH=3 or 4 selected in ZSTD frame

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inikep
2016-02-22 15:53:42 +01:00
parent 84f43e2359
commit 6b3739c8e5
2 changed files with 16 additions and 11 deletions
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lib/zstd_compress.c
+10 -7
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@@ -2144,7 +2144,7 @@ size_t ZSTD_compressBegin_advanced(ZSTD_CCtx* zc,
if (ZSTD_isError(errorCode)) return errorCode;
MEM_writeLE32(zc->headerBuffer, ZSTD_MAGICNUMBER); /* Write Header */
((BYTE*)zc->headerBuffer)[4] = (BYTE)(params.windowLog - ZSTD_WINDOWLOG_ABSOLUTEMIN);
((BYTE*)zc->headerBuffer)[4] = (BYTE)(params.windowLog - ZSTD_WINDOWLOG_ABSOLUTEMIN + ((params.searchLength==3)<<4));
zc->hbSize = ZSTD_frameHeaderSize_min;
zc->stage = 0;
@@ -2259,7 +2259,7 @@ size_t ZSTD_compress(void* dst, size_t maxDstSize, const void* src, size_t srcSi
/*-===== Pre-defined compression levels =====-*/
#define ZSTD_MAX_CLEVEL 22
#define ZSTD_MAX_CLEVEL 25
unsigned ZSTD_maxCLevel(void) { return ZSTD_MAX_CLEVEL; }
@@ -2284,11 +2284,14 @@ static const ZSTD_parameters ZSTD_defaultParameters[4][ZSTD_MAX_CLEVEL+1] = {
{ 0, 23, 23, 23, 0, 5, 5, 4, ZSTD_lazy2 }, /* level 15 */
{ 0, 23, 22, 22, 0, 5, 5, 4, ZSTD_btlazy2 }, /* level 16 */
{ 0, 24, 24, 23, 0, 4, 5, 4, ZSTD_btlazy2 }, /* level 17 */
{ 0, 24, 24, 23, 16, 5, 5, 30, ZSTD_btopt }, /* level 18 */
{ 0, 25, 25, 24, 16, 5, 4, 40, ZSTD_btopt }, /* level 19 */
{ 0, 26, 26, 25, 16, 8, 4,256, ZSTD_btopt }, /* level 20 */
{ 0, 26, 27, 25, 24, 10, 4,256, ZSTD_btopt }, /* level 21 */
{ 0, 26, 26, 25, 16, 8, 3,256, ZSTD_btopt }, /* level 20+MM3 */
{ 0, 24, 24, 23, 0, 5, 5, 30, ZSTD_btopt }, /* level 18 */
{ 0, 25, 25, 24, 0, 5, 4, 40, ZSTD_btopt }, /* level 19 */
{ 0, 26, 26, 25, 0, 8, 4,256, ZSTD_btopt }, /* level 20 */
{ 0, 26, 27, 25, 0, 10, 4,256, ZSTD_btopt }, /* level 21 */
{ 0, 24, 24, 23, 16, 5, 3, 30, ZSTD_btopt }, /* level 22 */
{ 0, 25, 25, 24, 16, 5, 3, 40, ZSTD_btopt }, /* level 23 */
{ 0, 26, 26, 25, 16, 8, 3,256, ZSTD_btopt }, /* level 24 */
{ 0, 26, 27, 25, 24, 10, 3,256, ZSTD_btopt }, /* level 25 */
},
{ /* for srcSize <= 256 KB */
/* l, W, C, H, H3, S, L, T, strat */